How to Properly Maintain and Clean an Espresso Coffee Machine Espresso machines make use of pressure to push water through coffee grounds. This type of brewing creates a stronger beverage than drip coffee. These machines require 9 bars of pressure to extract flavor from the grounds. Espresso machines are available https://coffeee88482.getblogs.net/62258312/from-around-the-web-20-amazing-infographics-about-espresso-machine